Answer:
Due to their different method.
Step-by-step explanation:
Truman and Kennedy's Cold War Policies are different from one another. Kennedy adopted the policy of containment, which helped to stop the spread of Communism while on the other hand, Truman policy provide guarantee that the United States would help any nation resist communism in order to prevent its spread. Both uses the policy of containment but in different ways. Kennedy established Peace Corps to stop spread of communism whereas Truman help other countries to stop the spread of communism.